Inventor · disambiguated record
David A. Schaefer
Also filed as: SCHAEFER DAVID A · SCHAEFER DAVID WAYNE
3 granted patents·1 pending application·90 citations·filing 1983–2003
74Inventor score
Top patents by PatentIndex Score
4 records- 0172US4526409AExpansion jointADSCO MFG CORP·Filed 1983·Granted Jul 2, 1985·42 cites·5 claims
- 0268US5299841ASafety flow restrictor for expansion jointsADSCO MFG CORP·Filed 1993·Granted Apr 5, 1994·40 cites·9 claims
- 0336US2004103749A1Reduced pressure indexing tableFiled 2003·Application pending·0 cites
- 0427US5421621APacking manifold for slip-type expansion jointsADSCO MANUFACTURING COMPANY·Filed 1993·Granted Jun 6, 1995·8 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →